mcclanathan



n J. B'. MGGLANATHAN. MACHINE. PoR SHARPBNING cALKs o1:1 HoRsBsHoEs.

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IMPROVED MACHINE FOR SHARPENIN G GALKS FiHORSE-SHOES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, 1B.. MCCLANATHAN, of Hoi-icon, in4 the conntyoi' Dodge, and State ot Wisconsin, have invented a. new and rnproved Machine for Sharpening the Culks on Herse-Slloesj 'and I hereby declare that the following is s full, clear, und exa-ct description"thereof, reference being had to the accompanying drewings, making a, part of this speciiication, und to the letters of reference marked thereon. i

To enable others skilled in the art to construct und use my invention, I will proceed to describe it.

Figure 1 is n longitudinal section.

Figure 2, n rear elevation :md

Figure 3, n modification ofthe cutting burr.

My invention hns for its object the furnishing of' :t tool by which the culks ou horse-shoes muy be` sharpened vwithout removing the shoe `i'rom the foot oil the anima-l.

I first construct aframe for holding the cutting tool und rest, which frame conists ofthe piece A; having the side pieces B pro'iectngnfrom the rear farce thereof, as shown in iig. 1. This fralme A. is made of cast iron, and has one of the .side pieces B enst solid with it,the other being enst seperately, in'oi'der to permit the ready insertion orchnnge of the cutting burr D. A rest or supporting plate, C, is made of the form shown in iig. 1,

und of proper width to fill the space between the side plates, as shown in fig. 2, saidplute C being pivoted at a of fig. 1. The upper end nt this plate C is provided with u series of notches orledgeson its front face', as shown in 1, to serve ns supports for the point of the cnlk while being sharpened, und thus regulate the extentof the cutting on the calli. il. screw, E, is inserted through the bnr of the freine A, in .such a. position ns to press against the lower end of the pivotcrl pluto C, by which the upper end of said plate een be adjusted in relation to the cutting bur D, ns shown in iig. 1. The cutting tool consists of n steel roller, D, provided with a. series of cutting lips like :tu ordinary hur or milling tool. This bur is provided with n. shaft, having its bearing in the side of plates B, und projecting through the sleeve I at one side, and hns a crank, H, attached, as shownin fig. 2, by which it is rotated in the act of sharpening the cnlk. l The bur D 11ans its cutting lips extending spirally around it,` for the purpose of producing u sheer or draw cut, and by which scvcrul of the lipswill'be cutting at the sume time, and tlns cut more .smoothly and evenly than they would if they were formed in lines parallel with the nxiis of the bur. 'Fig 8 represents a. bur having its cutting lips formed in curved lines, by which mea-ns thetendency to shove the cnlk to one side of the machine, caused by the oblique orspiral grooves, will be obviuted.`

The operation is as follows: The animnls foot beingV raised, the tool isnpplied byinsertng the calk in, the

space between the bur and the plate C-the latter being adjusted to suit the thickness of the cnlk--when the crank is turned and the bur cuts away thc ealk until brought to an edge, the screw E being adjustedns may be necessary during the yoperation. A curved plate, F, is attached to the end of the frame A., for pressing with the body against the'tool, to hold it firmly inl place while in operation. l

Having described my invention, whntl claim, is p 1. The frame A, halving the bur D mounted therein, in combipntion'with the rigid pivoted plate C andnetscrew E, arranged es described. p

2. Providing the upper front face of the plate C with the corrugtions, to act as rests or supports for the point of the calk, as described.

' J. B. MCCLANATHAN.

Witnesses WM. DECKER, N. PERRY HULL. 

